What's so absurd about my idea? Obviously I don't mean now because he is injured. I mean for next year he is a under sized LB with speed and seems to have an instinct for the ball. Maybe he competes with church and Johnson

No dice. We need Sims and Albright at ILB. And if he is playing safety, then most likely that means that Dan Connor is on the field. You might as well stand aside and let them dance right into the endzone.

Not that crazy. He has the speed and can certainly hit and play near the LOS. The question is does he have the hips and technique to cover. There have been 6-4 and 6-5 safeties to play. Randy Hughes was 6-4 and I think he would have been an All Pro player if he'd not been injured. I actually think Carter could play S if he dropped 10 or so. Never going to happen though.

Sims to safety isn't THAT crazy of an idea and it's unfair to the OP to make that kind of comparison. Darren Woodson was an undersized LB in college and that worked out pretty well, so the precedence is there.

However...

I don't think Sims has the fluidity and long range coverage ability that would be needed to succeed. 20 years ago, it might have been possible, but the game has changed.